Question

A 20 kg load is suspended from the lower end
of a wire 10cm long and 1mm? in cross sectional
area. The upper half of the wire is made of iron
and the lower half with aluminium. The total
elongation in the wire is:
(Y. = 20 x 1010 N/m², Y = 7 x 1010 N/m?)
1) 18.9 x 10-2m 2) 17.8 x 10-2m
3) 1.78 x 10-3 m 4) 1.89 x 104 m
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Answer 1

Answer:

Sorry I didn't no

Sorry

Thanks

Answer 2

I hope you're answers this